CNN's Anderson Cooper introduced Michael Avenatti to the literary agent who is now a key witness in Avenatti's fraud trial, in which the onetime Democratic frontrunner stands accused of stealing money from porn star Stormy Daniels. Luke Janklow, the agent who arranged a lucrative book deal for Daniels in 2018, testified on Monday that Cooper introduced him to Avenatti, who was serving as the porn star's lawyer at the time. "He said he was a dynamic, energetic guy," Janklow said of Cooper, his friend since childhood. Janklow, heir to the Warner Bros. fortune, and Cooper, a Vanderbilt scion, were just...